1830869 has 6 divisors (see below), whose sum is σ = 1914486. Its totient is φ = 1750760.

The previous prime is 1830863. The next prime is 1830887. The reversal of 1830869 is 9680381.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 508369 = 1150^2 + 713^2 .

It is not a de Polignac number, because 1830869 - 2⁸ = 1830613 is a prime.

It is a super-2 number, since 2×1830869² = 6704162590322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1830863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1202 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (319081).

2^1830869 is an apocalyptic number.

It is an amenable number.

1830869 is a deficient number, since it is larger than the sum of its proper divisors (83617).

1830869 is an equidigital number, since it uses as much as digits as its factorization.

1830869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507 (or 3484 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1830869 is about 1353.0960793676. The cubic root of 1830869 is about 122.3354781545.

The spelling of 1830869 in words is "one million, eight hundred thirty thousand, eight hundred sixty-nine".